Daniel Starke 0a7fe1a47c tty: n_gsm: fix insufficient txframe size ... commit 535bf600de upstream. n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010. See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516 The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to the newer 27.010 here. Chapter 5.7.2 states that the maximum frame size (N1) refers to the length of the information field (i.e. user payload). However, 'txframe' stores the whole frame including frame header, checksum and start/end flags. We also need to consider the byte stuffing overhead. Define constant for the protocol overhead and adjust the 'txframe' size calculation accordingly to reserve enough space for a complete mux frame including byte stuffing for advanced option mode. Note that no byte stuffing is applied to the start and end flag. Also use MAX_MTU instead of MAX_MRU as this buffer is used for data transmission. Fixes: e1eaea46bb ("tty: n_gsm line discipline") Cc: stable@vger.kernel.org Signed-off-by: Daniel Starke <daniel.starke@siemens.com> Link: https://lore.kernel.org/r/20220414094225.4527-8-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-05-09 09:14:43 +02:00
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hvc	tty: hvc: fix return value of __setup handler	2022-04-08 14:23:50 +02:00
ipwireless
serdev
serial	serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device	2022-05-09 09:14:30 +02:00
vt	vt_ioctl: add array_index_nospec to VT_ACTIVATE	2022-02-16 12:56:33 +01:00
amiserial.c
ehv_bytechan.c
goldfish.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c	mxser: fix xmit_buf leak in activate when LSR == 0xff	2022-04-08 14:23:43 +02:00
n_gsm.c	tty: n_gsm: fix insufficient txframe size	2022-05-09 09:14:43 +02:00
n_hdlc.c	tty: n_hdlc: make n_hdlc_tty_wakeup() asynchronous	2021-12-22 09:32:45 +01:00
n_null.c
n_tty.c	tty: n_tty: do not look ahead for EOL character past the end of the buffer	2022-02-23 12:03:15 +01:00
nozomi.c
pty.c
synclink_gt.c
sysrq.c
tty.h
tty_audit.c
tty_baudrate.c
tty_buffer.c	tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc	2021-11-25 09:48:28 +01:00
tty_io.c
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c